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DVR box makes a high frequency sound
Is this normal? When the TV is on, the sound can't be heard but when the TV is turned off it's very noticeable as a high pitch frequency sound. Only had the new DVR box one week.
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Sandy7
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My cable box does this too. The cable box, TV, sound system, etc are all turned off. Every 2-3 minutes there is a loud whirling sound, like the sound an old computer made when you inserted a CD and it started to spin. It's not white noise.
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ChrisL
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If it's a DVR box you have it's possible you're hearing the hard drive spinning up.
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